/Engine/Plugins/Runtime/RigVM/Source/RigVM/Public/RigVMCore/RigVMTemplate.h
Returns meta data on the property of the permutations.
[FString](API\Runtime\Core\Containers\FString) GetArgumentMetaData ( const [FName](API\Runtime\Core\UObject\FName) & InArgumentName, const [FName](API\Runtime\Core\UObject\FName) & InMetaDataKey, const [TArray](API\Runtime\Core\Containers\TArray)< int32 > & InPermutationIndices ) const